body {
    display: block;
    min-height: 100vh;
    background-color: whitesmoke;
}

header {
    width: 100%;
    background-color: #7caad4;
}

main {
    margin-top: 10px;
}

.userimg {
    display: flex;
    justify-content: center;
}

.userimg img {
    border: solid 2px #7caad4;
    border-radius: 50%;
    overflow: hidden;
}

.opentop {
    display: none;
    width: 60%;
    height: 60%;
    border-radius: 10px;
    background-color: #ffffd2;
    z-index: 999;
    position: fixed;
    top: 20%;
    left: 20%;
    visibility: visible;
}

.opentop .title {
    text-align: center;
    padding-top: 10px;
    overflow: hidden;
    border-radius: 10px 10px 0 0;
    background-color: #eaffd0;
}

footer {
    width: 100%;
    margin-top: 20px;
    text-align: center;
    position: relative;
    bottom: 10px;
}